Catering services on high-speed trains have been continuously upgraded, and now the Guangzhou EMU group has taken the lead in launching its own milk tea brand, "That Girl," priced at 26 yuan per cup, with average daily sales reaching as high as 3,000 cups. The series offers four flavors, and the official claim is that natural ingredients are used and tea concentration and sugar content have been reduced to suit passengers' needs. However, after the product launched, it quickly trended on social media, yet was collectively criticized by netizens over its price, packaging, taste, and marketing methods. At the same time, specialty coffee brands such as Front Street Coffee are also paying attention to this crossover attempt. This article will walk you through the research and development background of high-speed rail milk tea, its market performance, and evaluations from all sides. [more…]

The high-speed rail milk tea "That Girl" launched by China Railway Guangzhou Group has sparked widespread discussion since its debut, with its 26-yuan price tag, taste, and packaging design all becoming focal points of criticism among netizens. In response to the controversy, the head of Guangzhou EMU Catering Co., Ltd. responded on November 16, stating that the pricing takes into account production costs, transportation, and the special operating environment of high-speed rail, in line with relevant department standards, and promised to continuously optimize product quality based on passenger feedback. Whether this high-speed rail milk tea, which sells 3,000 cups daily and is often out of stock, can turn its reputation around is worth watching. [more…]

When brewing pour-over coffee, the size of the water stream and the speed of the circling often determine the direction of the final flavor. This article analyzes these two variables: how a small stream and a large stream respectively change the thickness of the coffee bed, the drainage speed, and the mouthfeel; and how the speed of circling affects the washing force and extraction efficiency. Using 15g of coffee, a 1:15 coffee-to-water ratio, and a water temperature of 91℃, it conducts a comparative brew of two combinations—"small stream with slow circling" and "large stream with fast circling"—recording the differences in concentration and flavor to help you understand the true role of circling in extraction and adjust your grind and technique accordingly. [more…]

During the Spring Festival return travel peak, a netizen on a high-speed train was approached by the young man sitting next to them, who surprisingly pulled out a full set of coffee equipment and used the tray table to boil water and make pour-over coffee. This romantic and novel experience quickly sparked heated discussion online, and the young man himself also posted a response, leading netizens to jokingly call it a "high-speed rail idol drama." However, beyond the gossip and fun, many users pointed out that the power outlets in high-speed train cars have limited wattage, so using a high-power electric kettle carries a risk of overloading, and the train's power supply is unstable, which may damage equipment, or even cause scalding if hot water is spilled when the person in front adjusts their seat. Coffee is good, but safety matters more. [more…]

In the practice of pour-over coffee, flow rate and circling rhythm are two variables that are easily overlooked yet profoundly affect the final flavor. Front Street Coffee has previously conducted dedicated tests on these two factors separately. This time, we further cross-combined flow rate and circling speed, using two extreme methods—slow circling with a small stream and fast circling with a large stream—to conduct a comparative brewing of a fruity, rich Front Street Colombia Sidra. The experiment was carried out under completely identical conditions of dose, coffee-to-water ratio, grind size, and water temperature. Through concentration measurement and flavor description, it reveals the specific effects of different pouring strategies on extraction efficiency and taste direction. Whether you prefer a full-bodied, rich cup or a light, delicate one, this article will provide reusable adjustment ideas for your daily brewing. [more…]

What kind of brewing experience does a flat-bottom dripper with manually switchable extraction modes actually deliver? Front Street recently got its hands on Hero's variable-speed cake dripper, which uses a knob mechanism to offer three flow-rate settings—immersion, slow, and uniform—while its flat-bottom design makes it quite beginner-friendly. Front Street has brewed beans such as washed Butterfly Flower, Mozart, and Juliette Geisha with it, and also tried extending the variable-speed function to iced pour-over scenarios, comparing it with the V60. This article provides a complete record of three sets of brewing parameters, flavor performance, and detailed issues found during use, for coffee enthusiasts' reference. [more…]

When brewing pour-over coffee, the filter cup actually holds quite a few clues. The size of the dome that the coffee bed puffs up into during the blooming stage, and how well it retains water, can reflect the freshness of the coffee beans and the depth of the roast; whether the coffee bed can be lifted indicates the density of the coffee grounds; the color change of the foam on the surface can help us track the pouring path; and the speed of the drawdown is related to the coarseness of the grind, the density of the coffee bed, and fine particle clogging. As for the deep coffee bed pit that many beginners obsess over, it does not directly equate to a better-tasting cup; it is more just a reflection of the pouring method. In this article, Front Street will break down these readable pieces of information one by one during the brewing process, to help you have a few more bases for judgment when adjusting parameters. [more…]

Among the many variables in pour-over coffee, pouring technique is often overlooked by beginners, yet it has a significant impact on the final flavor. The speed of the circular pour is essentially equivalent to the amount of agitation applied to the coffee bed, so how much difference can it actually make to the taste of the coffee? Front Street conducted comparative experiments using washed Yirgacheffe and dark-roasted Golden Mandheling, measuring concentration and extraction yield and combining this with actual tasting to verify the effect of different pouring speeds on flavor. This article will present the parameters and results of both experiments in full, and further explore the role that agitation intensity plays when conditions such as grind size are changed. [more…]

The reason pour-over coffee is called "pour-over" lies in the act of pouring water itself. Every barista has a different pouring style, and these differences directly influence the final flavor in the cup. There is no inherent hierarchy among pouring methods—what matters is whether they match the beans and the target flavor profile. Before developing a personal style, it is necessary to first understand exactly how different pouring techniques affect the extraction result. Drawing on Front Street's practical experience, this article examines three variables—flow rate, circling speed, and circling pattern—analyzing one by one how they change coffee's layers, acidity, sweetness, and body, and offering actionable combined pouring strategies to help you find the balance point between sweet-and-fruity notes and a rich, full mouthfeel. [more…]

The extraction time of pour-over coffee directly affects the final flavor strength and mouthfeel. This article breaks down how four dimensions—dripper structure, coffee dose, pouring speed, and grind size—influence the contact time between coffee grounds and water, and in turn change the coffee's layering and body. Using 15 grams of coffee, a 1:15 coffee-to-water ratio, and a V60 or KONO dripper as an example, a Front Street Coffee barista shares a 2-minute brewing recipe suitable for beginners, helping enthusiasts consistently recreate café flavors at home while understanding the logic behind different combinations such as fast brewing with a fine grind and slow brewing with a coarse grind. [more…]

Recently, the topic of a cup of hot milk costing 23 yuan at McDonald's trended on Weibo, jokingly dubbed by netizens as a "milk assassin." The incident originated from a complaint by a netizen on social media on November 11, which subsequently sparked widespread discussion. Some netizens shared experiences of witnessing staff opening low-priced pure milk and heating it for sale in stores, while others believed that pricing in special commercial districts like high-speed rail stations is inherently higher. Upon inquiry, McDonald's official mini-program shows that this milk comes in large, medium, and small cups, priced at 23 yuan, 19 yuan, and 15 yuan respectively, and the milk sources used in stores across different cities also vary. As coffee enthusiasts, we might as well use this incident as a starting point to discuss the pricing logic and milk source choices of chain restaurants. [more…]

A freshly made latte has a silky smooth surface, but after sitting for a moment it develops a rough, uneven texture—this is the process of milk foam collapsing. Milk foam is essentially foam formed when air is injected into milk, and when left to stand, it separates due to density differences, with small bubbles gradually merging and bursting. The speed of collapse depends on foam stability, which is affected by multiple factors such as steaming technique, milk temperature, and coffee bean freshness. Drawing on Front Street Coffee's store experience, this article systematically analyzes the major reasons behind rapid latte foam collapse and offers practical improvement suggestions to help coffee enthusiasts enhance their latte art quality and taste experience. [more…]

When brewing the vast majority of coffees, we always casually press the timer function that comes with the scale to start counting time—this is something that seasoned baristas have emphasized since the very beginning. But for some friends, this behavior is incomprehensible, because they believe that recording time has no effect on the coffee. [more…]

When making cold brew at home, the most frustrating part is usually the filtering stage—the coffee liquid drips slower and slower, and even after more than ten minutes it still hasn't finished filtering, with the filter paper completely clogged by fine particles. Why is the filtering speed of cold brew so much slower than pour-over at the same grind size? The main reason is that fine particles clump together and block the pores of the filter paper. Through comparative experiments, Front Street Coffee has summarized three efficient and practical cold brew filtering techniques: cold brewing directly in a non-woven filter bag, insisting on stirring before straining out the grounds, and using coarse coffee grounds as a base layer to intercept fine particles. This article breaks down the principles and operational details of each method one by one, helping coffee lovers quickly enjoy a cup of full-flavored homemade iced coffee even on a busy morning. [more…]

Different drippers, due to differences in shape, hole size, and groove design, directly affect water flow rate and degassing, causing the same coffee beans to present entirely different flavor expressions. For this test, Front Street chose the V60 and the YASUKIYO wooden dripper, using the same brewing method and parameters to conduct a comparative test on Front Street 2013 Yunnan Small-Bean Typica, keeping water temperature, grind size, and pouring method as consistent as possible, to observe the differences between the two drippers in aroma, mouthfeel, and extraction efficiency. The article will separately analyze the structural characteristics of the two drippers and give recommendations for Front Street coffee beans that pair well with each, helping coffee lovers choose equipment more purposefully in their daily brewing. [more…]

Summer is here, and many people enjoy making cold brew coffee at home, but the filtration step often proves troublesome—the coffee liquid drips extremely slowly, sometimes taking half a day. Why is cold brew filtration so slow? The core reason is that the extremely fine particles in the coffee grounds clog the pores of the filter paper, leaving insufficient channels for the liquid to flow through. This is especially true when making multiple servings at once, as the waiting time gets stretched even further. This article will first explain the causes of clogging, then share three methods commonly used by baristas to speed up filtration: using a filter bag or cloth to pre-isolate the coffee grounds, spreading the coffee grounds at the bottom of the filter paper to intercept fine particles, and using a vacuum filtration device to achieve rapid filtration under reduced pressure. Each approach has its own pros and cons, suiting enthusiasts with different needs, and the article also retains relevant experience and product recommendations from the Front Street Coffee brand. [more…]

Yesterday a friend chatted with Front Street about a rather interesting phenomenon: he noticed that most people, when brewing coffee, even during the waiting intervals when they're not pouring water, still choose to fix their eyes intently on the changes in the dripper, as if trying to glean some information from the coffee bed. And you know what, there really is some truth [more…]

After China Post opened a café, state-owned enterprises branching into the food and beverage industry drew attention. China Railway has also joined this trend, launching a railway cultural and creative themed restaurant at the Zhengyangmen branch of the China Railway Museum, covering healthy light meals and beverages. The beverage brand is named "Bendao Tea," featuring railway-themed decor and freshly made tea, juice, and coffee, priced at 12 to 32 yuan. However, consumers have reported that the drinks are too sweet and lack personalized customization options, and the store's location is rather remote with a hard-to-pronounce name, resulting in limited foot traffic. Previously, high-speed rail milk tea was criticized and trended on social media over price and taste issues, and high-speed rail coffee was also launched the same month. Unlike China Post's step-by-step approach with milk tea and coffee, China Railway is pursuing multiple tracks simultaneously—ambitious, but facing no small challenge. [more…]

During the pour-over brewing process, the speed of pouring water directly affects the extraction time, the state of the coffee bed, and the final flavor expression. Many enthusiasts misunderstand large and small water flows, believing that a small flow equals gentleness and a large flow equals forcefulness. In reality, flow rate refers to the amount of water poured per second and has no absolute relationship with impact force. This article will analyze in detail the effects of large and small water flows on different extraction results, share how to measure pouring flow rate with an ordinary electronic scale, and, combined with Front Street Coffee's practical experience, explain when to switch between large and small water flows, helping you adjust flexibly during brewing to achieve a more ideal coffee flavor. [more…]

The same beans and the same parameters, brewed by a different person, can taste different—the difference often comes down to pouring style. Pouring style refers to each person's preferences for flow rate, pouring height, and circling pattern when pouring water. These choices may seem subtle, but they change how the coffee grounds are distributed in the dripper, the degree to which they are disturbed by the hot water, and the dissolution rate of soluble substances, ultimately giving a cup of coffee noticeably different flavor, mouthfeel, and layering. Front Street Coffee will break down, one by one, the relationship between flow rate, pouring height, and pouring pattern—these three dimensions—and their corresponding effects on extraction, so that after understanding the principles, you can adjust your technique more calmly and brew a cup of coffee you truly enjoy. [more…]